Our group meets
the highest quality expectations
in welding
Since 2008, our company complies to processes in accordance with the quality system ISO 9001:2008 granted by DEKRA. In the field of welding Ładziński Group is certified to DIN EN ISO 3834-2, DIN EN ISO1090 (DIN 18800-7, class E), granted by the Welding Institute in Halle, which confirms the highest quality of our products. With these certifications, we can produce static and dynamic constructions, such as steel bridges, cranes, excavators and masts. Our company has also been certified according to DIN EN 15085-2 (granted by GSI SLV Halle) with the highest level of certification CL1 – which allows us to produce key components for railway vehicles
We enable the production of both static and dynamically stressed superstructures, such as:
- steel bridges
- cranes
- gantry crane supporting beams
- excavators
- stackers
- distribution masts for concrete pumps
- movable constructions
- aerial constructions
- steel chimneys, extraction shafts
- containers
Our personnel forms a highly qualified team and aims for the highest quality of our products.

EN ISO 9001:2015
- Ładziński Zakłady Metalowe – Download certificate : PL – DE – EN
- Prokostal Sp.z o.o,Sp.k. – Download certificate : PL – DE – EN
- Ładziński Produkcja Specjalistycznych Pojazdów – Download certificate : PL – DE – EN

EN ISO 3834-2
- Prokostal Sp.z o.o,Sp.k. – Download certificate : DE / ENG

EN ISO 1090-2
- Prokostal Sp. z o.o, Sp.k – Download certificate :
– WPK: DE / EN
– Welding certificate: EN / DE

DIN EN 15085-2
(at the highest level of certification CL1)
- Prokostal Sp.z o.o,Sp.k. – Download certificate: DE/EN

Qualification certificate – Large establishments
- Prokostal Sp.z o.o,Sp.k. – Download certificate: PL